Arsenal secured a dramatic victory over Luton as Declan Rice headed in a last-minute winner, but there are concerns despite the result. Mikel Arteta’s side found themselves 2-1 up, then 3-2 down following two errors from goalkeeper David Raya, but dug in and secured what could be a crucial victory. Arsenal were dominant in terms of possession and chances, but somehow conceded three goals, in no small part due to errors from their goalkeeper, and this now means that they lead the Premier League in an unwanted stat. Arsenal make more errors than anyone elseIt has now emerged that Arsenal, who ar…